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CS3530 Assigment 8

Kennesaw State University

Department of Computer Science Operating Systems CS3530/01 Assignment # 8 / Dynamic Page Replacement



Dalibor Labudovic


07/24/12013








Initial Problem Statement: Study of Performance with dynamic page replacement in Virtual Memory Management, using the Working Set algorithm.

Observation of general behavior of a system with dynamic page replacement. Computation of some relevant performance metrics.
The simulation model for this assignment is implemented in C++ using Psim3 package: "wspgrep.cpp". This model uses the Working Set technique.
Copy the source file from the system directory on CS3 (follow instructions on the Web), then compile, and link.
Run the program at least three times. Write a report describing the characteristics of the page replacement technique modeled.
Use the usual guidelines for structuring the report. Include at the end of the report your answers to the following questions. * What aspect of an operating system is the model representing? * What per…

CS 3530 Assignment 7

Kennesaw State University

Department of Computer Science Operating Systems CS3530/01 Assignment # 7 / Virtual Memory Managment



Dalibor Labudovic


07/24/12013








Initial Problem Statement: Study of static page replacement in Virtual Memory Management.

Observation of general behavior of a system with page replacement. Computation of some relevant performance metrics.
The simulation models for this assignment are implemented in the C++ programs: "fifopgrep.cpp", "lrupgrep.cpp", and "optpgrep.cpp". These models apply the FIFO, LRU, and Optimal techniques.
Copy the source files from the system directory on CS3 (follow instructions on the Web), then compile, and link. Run the programs.
Write a report describing the characteristics of the page replacement techniques modeled. Run the simulation models. Change the average and standard deviation for the normal distribution, and compare results. * What changes in the results do you notice? * What other performance measures can this model …

CS3530 Assignment 6

Kennesaw State University

Department of Computer Science Operating Systems CS3530/01 Assignment # 6 / I/O Device Scheduling Techniques



Dalibor Labudovic


07/20/12013








Initial Problem Statement: The simulation models are implemented in C++ and use Psim3. The models apply the disk scheduling algorithms for FCFS, SSTF, and SCAN. These models use the normal distribution for generating a queue of I/O requests. The C++ file implementations are: dsfcfsn.cpp, dssstfn.cpp, and dscann.cpp.
Structure your report according to the outline described in the syllabus. Respond to the general questions in the syllabus for assignments, and the following additional questions:
Answer the following questions :
1. How would you modify the programs that implement the disk scheduling policies to reflect a disk with 30\% faster seek time, and 40\% faster transfer time. How does this affect the performance of the disk management?
3. How would you modify the models that use the normal distribution to generate the disk requests,…